Just return an empty log

client-api/api_lib/pvcapi_helper.py

@@ -358,17 +358,11 @@ def vm_console(vm, lines=None):
     pvc_common.stopZKConnection(zk_conn)
 
     if retflag:
-        if retdata:
         retcode = 200
         retdata = {
             'name': vm,
             'data': retdata
         }
-        else:
-            retcode = 404
-            retdata = {
-                'message': 'VM not found.'
-            }
     else:
         retcode = 400
         retdata = {